Dürr Ecoclean will present the all-new EcoCCore system for solvent-based parts cleaning. It is designed for operations with non-halogenated hydrocarbons or modified alcohols under full vacuum conditions.
"Equipped with state-of-the-art technology and characterized by an extensive standard equipment level including two flood tanks, heat recovery and full-flow plus bypass filtration capabilities, the EcoCCore meets most demanding requirements in regard to cleaning quality, process reliability, cost and energy efficiency, high speed, availability, short delivery times and eco-compatibility," said a company spokesperson.
A new preliminary vapor degreasing process is designed for improved cleaning quality. "Here, the oil-containing distillate is not passed into the flood tank as usual, but is directed straight into the distilling system," said the spokesperson. "This minimizes oil deposits in the flood tank and undesirable contamination of the solvent with oil. The result is an enhanced degreasing performance beneficial for parts that will be coated or laser welded after cleaning. In addition, the preliminary vapor degreasing step offers advantages under elevated oil input conditions or when a second flood tank is used for a preservation treatment."
Another innovation designed to boost cleaning performance is the capability to use ultrasonic and filtration simultaneously. "Particles are discharged throughout this process cycle, in contrast to conventional systems where they can settle at the bottom of the work chamber before being filtered," said the spokesperson. "The EcoCCore pumps are equipped with variable frequency drive units and control the volumetric flow rate. The combined filtration system ensures an effective discharge of particles. Moreover, the unit comes with a frequency-controlled rotary drive for rotation and high-accuracy positioning of parts. A 'gentle' operating mode prevents sensitive parts from getting dropped or displaced during start-up or handling operations."
Internal heating elements have been removed from the stainless steel flood tanks. This design change eliminates the potential of particle trap points or chip accumulation, reducing risk of re-contamination of parts.
A new 7" color display features self-explanatory pictographs. If, for instance, a temperature needs to be preset only for the first flood tank, a matching setting for the second tank is selected automatically. Process tracking and maintenance are also rendered intuitive and more convenient by the integrated part visualization system. An optional full visualization capability can be integrated above the control panel.
The work chamber is designed to hold cleaning loads measuring up to 670 x 480 x 400 mm (26.4" x 18.9" x 15.8"), offering 1/3 more loading volume than the Universam 81C/P system. Throughput can thus be doubled, depending on the basket size. The maximum load weight capacity has been increased by more than 30% to 200 kg (440 lbs.). With a cycle time of less than eight minutes, this provides a significant reduction in per-unit cleaning cost, according to the company.
"Particular attention has also been paid to high efficiency and ease of maintenance," said the spokesperson. "For instance, both flood tanks are heated entirely with thermal energy recovered from the distilling circuit. The heat input from the distilling system can be adjusted as needed in multiple stages. As a result, energy is saved and a high throughput will be guaranteed even with high oil input rates. For the discharge of oil, a new process based on jacket heating, which is fully independent from the distillation system, ensures an optimized and gentle oil removal. As a result, a much broader range of oil grades can be removed in a safe and reliable manner. Moreover, oil encrustation requiring costly and time-consuming cleaning is avoided. Cost savings are also achievable by the new level control system, which effectively prevents a carryover of preserving medium, thereby reducing its consumption. Switching from cleaning to preserving mode can be done with the push of a button on the operator panel."
The integral loading system and its all-round enclosure are made of safety glass. According to the company, the universal EcoCCore machine requires around 5% less floor space than the 81C/P machines. A further benefit is that its top height can be reduced to only 7.39' (2.25 m) by removing just a few components where access to the installation area is difficult.
For more information contact:
Dürr Ecoclean, Inc.
31077 Durr Drive
Wixom, MI 48393
248-560-2053
www.durr-ecoclean.com
IMTS 2014 Booth W-130